000
AXPZ20 KNHC 300935
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON MAY 30 2011

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.
 
...ITCZ...
AN ITCZ IS ANALYZED ALONG THE PACIFIC COAST OF CENTRAL AMERICA. 
AXIS EXTENDS FROM LOW PRES 1008 MB NEAR 11N104W TO 08N120W TO 
09N130W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION
FROM 07N TO 10N BETWEEN 102W AND 114W.  

...DISCUSSION...
HIGH PRES CENTER 1036 MB CENTERED WELL NW OF BASIN NEAR 37N152W 
HAS RIDGE EXTENDING SE TO NEAR 22N115W. THE PRES GRADIENT BETWEEN
THE RIDGE AND A TROUGH OF LOW PRES OVER THE BAJA PENINSULA AND
LOWER PRESSURE NEAR THE ITCZ IS MAINTAINING FRESH NW TO N WINDS 
N OF 20N BETWEEN 110W AND 121W AND FRESH N TO NE WINDS N OF 18N 
W OF 121W AS INDICATED BY THE MOST RECENT SCATTEROMETER PASS.

SURFACE LOW PRES 1006 MB IS CENTERED NEAR 11N104W HAS SCATTERED 
MODERATE TO ISOLATED STRONG CONVECTION S OF THE CENTER FROM 07N 
TO 10N BETWEEN 102W AND 114W. FURTHER DEVELOPMENT OF THE LOW WILL
BE SLOW TO OCCUR.

LARGE LONG PERIOD SOUTHERLY SWELLS WITH SEAS OF 8 TO 12 FT ARE 
PROPAGATING ACROSS THE ENTIRE AREA. UNUSUALLY HIGH BREAKERS AND 
HEAVY SURF ARE EXPECTED TO AFFECT THE ENTIRE PACIFIC COAST OF 
CENTRAL AMERICA LATER TODAY...AND CONTINUE THROUGH TUE NIGHT.

$$
MUNDELL